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Cushion|Lab Grown|IGI

1.05ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG833671683

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG833671683

Diamond specifications and retailer prices

From £107 GBP
As of November 6, 2026
Save £880 GBP (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £987 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1.05ct lab-grown cushion diamond

This 1.05ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG833671683 or 833671683. Listed at 12 retailers as of November 5, 2026, with prices from £107 to £987, a £880 spread on the same certified stone. MOH London lists it at £987. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.4°
Pavilion angle29.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833671683
Dimensions7.29 × 5.26 × 3.18 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.29 mm5.26 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG833671683
Side View
Table 61.0%Crown 34.4°Girdle: MED-THKPavilion 29.6°Culet: NoneDepth 60.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £987 GBP|Low: £107 GBP|High: £1,027 GBP|Avg: £303 GBP|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 6£107 GBP
Retailer 12£134 GBP
Retailer 2£152 GBP
Retailer 5£196 GBP
Retailer 10£207 GBP
Retailer 7£225 GBP
Retailer 8£226 GBP
Retailer 4£232 GBP
Retailer 9£297 GBP
Retailer 11£329 GBP
Retailer 3£377 GBP
MOH London£987 GBP

40 data points across 12 retailers

12 retailers£107 GBP to £987 GBP

A
Cheapest Retailer
-
£107 GBP
Final sale: no returns
A
Retailer 2
-
£134 GBP
View
A
Retailer 3
-
£152 GBP
View
A
Retailer 4
-
£196 GBP
View
A
Retailer 5
-
£207 GBP
View
A
Retailer 6
-
£225 GBP
View
B+
Retailer 7
-
£226 GBP
View
Retailer 8
-
£232 GBP
View
Price last confirmed 13 days ago
A
Retailer 9
-
£297 GBP
View
B+
Retailer 10
-
£329 GBP
View
Retailer 11
-
£377 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
LG833671683 · Nov 5
£987 GBP
View
11 more retailers have this diamond
Prices start from £107 GBPSave up to £880 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.05ct Cushion
£107 GBP